Cast stone



FIG. 1 is a top, front, and left side perspective view of a cast stone, according to the present invention;

FIG. 2 is a left side view thereof, the right side view being identical to the left side view;

FIG. 3 is a front view thereof, the rear view being identical to the front view;

FIG. 4 is a bottom, rear, and right side perspective view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof. 

CLAIM The ornamental design for a cast stone, as shown and described. 